Attachment for internal-combustion motors



J. C. THOMAS.

ATTACHMENT FOR INTERNAL CMBUSTION MOTORS.

APPLlcATloN FILED JAN.28,1920.

1,372,987. Patented Mar. 29, 1921.

ATTORNEY UNITED STATES PATENT OFFICE.

JAMES CLARENCE THOMAS, OIE*v HOUSTON, TEXAS.

` ATTACHMENT FOR INTERNAL-COMBUSTION MOTORS. v

Application filed January 28, 1920.

a device of the character described, specially adapted for application to the intake pipe of an internal combustion motor, whereby the motive iuid may be admitted to or cut O' from the motor cylinders.

Another object of the invention is to provide a device of the character described adapted to close the intake pipe of a motor and which may be locked in a closed position thereby preventing the theft or unauthorized use of the vehicle to which the motor belongs. i

With the above and other objects in view the invention has particular relation to certain novel features of construction, operation and arrangement of parts, an example of which isgiven in the accompanying drawings wherein Figure 1 is a side view of' a motor with the attachment applied thereto.

Fig. 2 shows a plan view of the attachment partially in section. l

Fig. 3 shows a side view thereof shown partially in section.

Fig.v 4 shows an enlarged fragmentary sectional view taken on the line, 4, 4 ofFig. 3 and Fig. 5 shows an enlarged fragmentary sectional view taken on the line 5, 5 of Fig. 4.

Referring now more particularly to the drawings wherein like numerals of reference designate similar parte in each of the figures, the numeral 1 refers to the motor having the intake manifold 2 which leads to the intake pipe 3 which conducts the m0- tive fluid from the carbureter 4 to the intake manifold. A valve casing 5 is carried by the intake pipe which casing has the slide valves 6 mounted therein. The valve 6 is provided with a circular opening 7. This opening may be brought into and out of registration with the intake pipe 3 by a suitable manipulation of the .valve 6. When Specification of Letters iatent.

Patented Mar. 29, 1921.

serial No. 354,593.

the opening 7 registers with the intake pipe, the motive fluid will pass freely from the carbureter into the intake manifold and thence to the cylinders of the motor in the usual way. lVhen the opening 7 is out of registration with the intake pipe, said pipe will be closed by the valve 6 as shown in Fig. 3 and the motive fluid will be cut off from the motor.

A tubular housing 8 is attached at one end to the dash board 9 and at its other end to the motor casing and a fiexible rod 10 is attached at one end to the valve 6 and lpasses through said housing and its other end extends through dash board 9, and this last mentioned end carries the hand grip 11 by means of which the rod may be manipulated and the valve 6 controlled, but the upper end of the rod 11 is formed with an eye 12 and fastened to the dash board 9 adjacent said end of said rod there is an outwardly turned fiange 13. The rod 1() works through a U-shaped bearing 14 fastened to the underside of the dash board 9 and within this-bearing the rod has the collar 15 fixed thereon. Surrounding said rod and interposed between the dash board and said collar there is a coil spring 16 which normally operates against said rod to hold the valve in position so that the opening 7 will register with the intake pipe 3.

When it is desired to cut off the supply of Huid the rod l() is pulled upwardly and the hasp 17 of the lock 18 may be inserted through the eye 12 and through an alined opening in the flange 13 and the rod thereby locked against movement, the valve 6 will thus be locked in position to close the intake pipe 3 which will prevent the operation of the vehicle and thus prevent the theft or unauthorized use thereof.

What I claim is:

1. The combination with an internal combustion motor having a carbureter and a conduit leading from said carbureter to the cylinders, of a valve arranged to open and close said conduit, a U-shaped bearing carried by the vehicle dash board, an operating rod attached to said valve and operating through said bearing, a yieldable member within said bearing and operating against said rod to normally hold said valve open, and means for locking the rod in position to hold the valve closed.

of an internal combustion motor of a valve 10 of said dash, and `means 'passing through Lames? said eye and flange for locking the vulve:v

against movement.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

[AMES CLARENCE THOMAS. Witnesses V .L CATHEY. E. M. SMITH. 

